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Finding the Fourth Proportional to 8,358.96, 12,464.78 and 8,284.01

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Solution

The fourth proportional to 8,358.96, 12,464.78 and 8,284.01 is: 12,353.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,358.96 : 12,464.78 = 8,284.01 : x
  2. Step 2: Convert to fraction form
    8,358.96/12,464.78 = 8,284.01/x
  3. Step 3: Cross multiply
    8,358.96x = 12,464.78 × 8,284.01
  4. Step 4: Simplify right side
    8,358.96x = 103,258,351.91
  5. Step 5: Solve for x
    x = 103,258,351.91/8,358.96
  6. Step 6: Final answer
    x = 12,353.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.